| 不同生态因子对曼氏皮海鞘耗氧率的影响 |
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| 引用本文： | 曹善茂,张丛尧,左骁.不同生态因子对曼氏皮海鞘耗氧率的影响[J].大连水产学院学报,2012,27(3):210-214. |
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| 作者姓名： | 曹善茂 张丛尧 左骁 |
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| 作者单位： | 大连海洋大学 辽宁省海洋生物资源恢复与生境修复重点实验室,辽宁 大连,116023 |
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| 摘 要： | 在静水条件下，研究了温度、盐度、pH、规格对曼氏皮海鞘Molgulamanhattensis耗氧率的影响及其昼夜变化规律。结果表明：温度为12～20℃时，曼氏皮海鞘的个体耗氧量和耗氧率随温度的升高而增大，高于20℃时则出现明显的下降趋势（P〈0．01）；盐度为20～32时，曼氏皮海鞘的个体耗氧量和耗氧率随盐度的升高而增大，盐度高于32时则出现明显的下降趋势（P〈0．01）；pH为6～8时，曼氏皮海鞘表现出较高的个体耗氧量和耗氧率，而pH低于6和高于8时则明显下降（P〈0．01）；曼氏皮海鞘的个体耗氧量随体质量的增大而增大，而耗氧率则随体质量的增大而减小；曼氏皮海鞘的个体耗氧量和耗氧率昼夜有两个生理高峰，分别为9：00—12：00及3：00—6：00两个时段。
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| 关 键 词： | 曼氏皮海鞘 生态因子 耗氧率 |
The effect of different ecological factors on oxygen consumption in ascidian Molgula manhattensis |
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| CAO Shan-mao
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ZHANG Cong-rao
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ZUO Xiao.The effect of different ecological factors on oxygen consumption in ascidian Molgula manhattensis[J].Journal of Dalian Fisheries University,2012,27(3):210-214. |
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| Authors: | CAO Shan-mao ZHANG Cong-rao ZUO Xiao |
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| Institution: | (Key Laboratory of Marine Bio-resources Restoration and Habitat Reparation in Liaoning Province, Dalian Ocean University, Dalian 116023 ,China) |
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| Abstract: | Effects of temperature（12, 16, 20, 24, and 28 ℃ ） ,salinity （20, 25,30, 32, 35 ,and 40）, pH values （4,5, 6,7, 8,9, and 10） , and sizes on oxygen consumption and its diurnal rhythm were studied in aseidian Molgu- la manhattensi. The results showed that the oxygen consumption was found to be increased with rising temperature within 12-20 ℃ and to be decreased in 24-28 ℃ （P〈0.01）. The oxygen consumption was increased with increas- ing salinity in 20-32, and decreased at a salinity of over 32（P〈0.01 ）. The oxygen consumption was shown to be increased with pH value from 6 to 8 ,and to be decreased beyond the range （ pH〈6 and pH〉8） （P〈0.01）. The individual oxygen consumption rate was found to be higher with the augment of body weight, the oxygen consump- tion rate being increased with increase in wet body weight. There were two peak values in diurnal oxygen consump- tion rate ： 9：00-12：00 and 3：00-6：00 in the morning. |
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| Keywords: | Molgula manhattensis ecological factor oxygen consumption rate |
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